For any large capacity (non-exempt) well usage, such as, but not limited to, irrigation, municipal or industrial purposes, please follow the guidelines below. If you have further questions, please call the Ground Water Information Desk at (303) 866-3587.

        Within a Designated Basin:

Large Capacity Wells. Please use form GWS-45 and provide supporting documentation for the proposed acre-foot amount. These types of wells may require a replacement plan pursuant to 37-90-107(5), C.R.S., and Designated Basin Rule 5.6.

Outside Designated Basins:

Non-Exempt Wells. Please use form GWS-45 and provide supporting documentation for the proposed acre-foot amount. These types of wells may require an augmentation plan. Please refer to The Beginner’s Guide to Augmentation Plans for Wells.